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(e) Testing of the above flexible pavement construction shall be by an independent testing laboratory approved by the ublic works director or his designee MM 0 The number of modified proctor (AASHTO T-180) tests for subgrade and/or base work shall be one for each material type. At least two (2) FBV tests or one per ten thousand (10,000) square feet of pavement, whichever is greater, is required. At least one in-place density test for every ten thousand (10,000) square feet of pavement using ASTM D2167 (rubber balloon method), sand cone method, ASTM 2922 (nuclear method), or other method as approved by the public works director or his designee MMMMI- • -- is required for both subgrade and base course construction. A minimum of two (2) in-place density tests are required regardless of size of pavement areas. Soil -cement testing shall be as per Florida Department of Transportation Specifications. (2) Rigid (concrete) pavement consisting of the following (a) and (b): (a) A six-inch thick subgrade stabilized to a Florida bearing value of fifty (50) psi minimum and compacted to a minimum of ninety- eight (98) per cent maximum density using AASHTO T-180. Testing shall be as for flexible pavement above. (b) For nonindustrial use, a four and one half- inch -thick nonreinforced concrete pavement. For industrial and frequent truck use, a minimum six -inch -thick nonreinforced concrete pavement. Design thickness for heavy equipment use shall be in accordance with the Portland cement Association recommendations. Calculations shall be submitted to the ublic works director or his designee • - • MANk with the request for rigid pavement design showing the structural adequacy of the design and ..the design 1-i f e of the •project . All concrete to be three thousand (3,000) psi in twenty-eight (28) days (AASHTO T023). All materials, longitudinal, transverse and construction joint location, material placement, and finishing shall be as recommended by the Portland cement Association and the Concrete Promotional Council of Florida. At least three (3) compressive strength cylinder samples shall be taken for every ten thousand (10,000) square feet of pavement, or five (5) per job; whichever is greater shall apply. Slump shall be two (2) to four (4) inches (AASHTO T-119). Compressive strength shall be reported for seven (7), fourteen (14) and twenty-eight (28) days after placement. (3) Proposed construction standards which deviate from section 954.09(1) or (2) may be approved by the ublic works director or his designee - if in his or her opinion the construction standards are suitable for the proposed use Coding: Words in "1107MMEre • type are deletions from existing law. Words underlined are additions.